Minn. R. agency 144, ch. 4645, ELEVATORS AND DUMBWAITERS FOR ALL HOSPITALS, pt. 4645.4700
Elevators, for which operators will not be employed, shall have automatic push-button control, signal control, or dual control for use with or without operator. Where two push-button elevators are located together and where one such elevator serves more than three floors and basement, they shall have collective or signal control. Where the car has a speed of more than 100 feet per minute or has a rise of four or more floors, the elevator shall be equipped with automatic self-leveling control which will automatically bring the car platform level with the landing with no load or full load. Multivoltage or variable voltage machines shall be used where speeds are greater than 150 feet per minute. For speeds above 350 feet per minute, the elevators shall be of the gearless type.
Minn. R. agency 144, ch. 4645, ELEVATORS AND DUMBWAITERS FOR ALL HOSPITALS, pt. 4645.4700
Statutory Authority: MS s 144.55; 144.56